Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 634)

Milling Fixed Cycles
Chapter 26
26-2
Milling fixed cycles (sometimes referred to as canned cycles or autocycles
cycles) repeat a series of basic machining operations, such as, boring,
drilling or tapping. These operations, designated by a single block
command, usually consist of a fixed series of steps that are dependent on
the type of machining application.
The control provides the milling fixed cycles shown in Table 26.A.
Table 26.A
Milling Fixed Cycles
G- code Application Tool Movement Operation At
Hole Bottom
Retraction Movement
G73 Deep Hole Peck Drilling Cycle with Dwell Intermittent Feed Retract Rapid Traverse
G74 Left-Hand Tapping Cycle Feed Spindle Reversed / Retract Feed
G74.1 Left-Hand Solid-Tapping Cycle Feed Spindle Reversed / Retract Feed
G76 Boring Cycle, Spindle Shift Feed Oriented Spindle Stop / Retract Rapid Traverse
G80 Cancel Or End Fixed Cycle N/A N/A N/A
G81 Drilling Cycle, No Dwell/Rapid Out Feed Retract Rapid Traverse
G82 Drilling Cycle, Dwell/Rapid Out Feed Dwell /Retract Rapid Traverse
G83 Deep Hole Drilling Cycle Intermittent Feed Retract Rapid Traverse
G84 Right-Hand Tapping Cycle Feed Spindle Reversed / Retract Feed
G84.1 Right-Hand Solid-Tapping Cycle Feed Spindle Reversed / Retract Feed
G85 Boring Cycle, No Dwell/Feed Out Feed Retract Feed
G86 Boring Cycle, Spindle Stop/Rapid Out Feed Spindle Stop /Retract Rapid Traverse
G87 Back Boring Cycle Feed Oriented Spindle Stop / Retract Rapid Traverse
G88 Boring Cycle Spindle Stop/ Manually Out Feed Dwell / Retract
Spindle Stop / Retract Manual/Rapid
Traverse
G89 Boring Cycle, Dwell/Feed Out Feed Dwell / Retract Feed
26.1
Milling Fixed Cycles